2023 Fiscal Year Final Research Report
Investigation of magnetic structures for lanthanoid ferromagnetic elements under high pressure
| Project/Area Number |
19KK0070
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 13:Condensed matter physics and related fields
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
Mito Masaki 九州工業大学, 大学院工学研究院, 教授 (60315108)
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| Co-Investigator(Kenkyū-buntansha) |
片宗 優貴 九州工業大学, 大学院工学研究院, 准教授 (50772662)
高阪 勇輔 大阪公立大学, 大学院工学研究科, 助教 (60406832)
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| Project Period (FY) |
2019-10-07 – 2024-03-31
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| Keywords | 高圧実験 / 磁気測定 / 中性子回折実験 / 希土類強磁性元素 |
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| Outline of Final Research Achievements |
We have developed the technique of magnetic measurements under high pressure environment, and have targeted single-element ferromagnets. There we have often observed the decrease in Curie temperatures and the reduction of the magnetic signal. However, there is a detectable limit in any magnetic measurements, and we cannot conclude that there magnetic orders survive or not. Thus, we have started the low-temperature and high-pressure neutron diffraction experiments in the Laue-Langevin institute along with Spanish and French groups, such that we have succeeded in constructing the nice research group for the research of the high-pressure magnetism.
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| Free Research Field |
高圧物性
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| Academic Significance and Societal Importance of the Research Achievements |
我が国の高圧・低温下における精密磁気測定は、諸外国と比べても高い実験技術に裏付けられた優位性を有している。しかし、グループ内で協力して実験技術を成熟させ、サイエンスを発展させていこうとする団結力は、西欧のグループに一日の長がある。例えば、高圧物性研究における高圧力下中性子回折実験がそれに当たる。そこで、我々の超伝導量子干渉素子を用いた高圧力下精密磁気測定とILLの低温高圧中性子回折実験のタイアップを計画し、実際、それを実現させることが出来たことは国際共同研究の一つの在り方として学術的にも社会的にも意義深い。
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